inches to points | Exact Decimal + Formula

1 Inch = 72 Point (DTP)

One inch equals exactly 72 points — a fixed ratio you can memorize. Real-world use: print dimensions and dpi (dots-per-inch) calculations. This page expresses those values in points, which is used for font sizes in print and design software. Enter any value above — the result updates instantly, and a 1–1000 reference table follows below.

About Inch and Point (DTP)

Inch (in)

In typography, an inch is exactly 72 points or 96 CSS pixels.

Where it's used: Print dimensions and DPI (dots-per-inch) calculations.

Point (DTP) (pt)

A DTP point is exactly 1/72 of an inch, the standard unit of type size.

Where it's used: Font sizes in print and design software.

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Precision

Formula

pt = in × 72

To convert Inch to Point (DTP), use the formula displayed above.

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Inch to Point (DTP): Quick Reference Table

Inch	Point (DTP) (Decimal)	Fraction	Real-world equivalent
0.001 in	0.072 pt	-	fractional unit measurement
0.01 in	0.72 pt	-	fractional unit measurement
0.1 in	7.2 pt	-	standard single unit scale
0.5 in	36 pt	-	multiple unit increments
1 in	72 pt	-	multiple unit increments
2 in	144 pt	-	multiple unit increments
5 in	360 pt	-	multiple unit increments
10 in	720 pt	-	multiple unit increments
25 in	1800 pt	-	multiple unit increments
50 in	3600 pt	-	multiple unit increments
100 in	7200 pt	-	multiple unit increments
250 in	18000 pt	-	multiple unit increments
500 in	36000 pt	-	multiple unit increments
1000 in	72000 pt	-	multiple unit increments

in to pt Formula and Examples

Direct Formula pt = in × 72

Inverse Formula in = pt × 0.013889

Mental Math Shortcut

Multiply the value by roughly 72 to calculate the equivalent amount in your head.

Common Inch to Point (DTP) Calculations

5 in = 360 pt
10 in = 720 pt
50 in = 3600 pt
100 in = 7200 pt
500 in = 36000 pt

Precision & Practical Use

For example, 10 in = 720 pt — roughly multiple unit increments.

Results are computed to up to 9 decimal places. Round to the precision of your measuring instrument — for most typography applications, 2–3 significant figures are plenty.

How to Convert Inch to Point (DTP)

How many point (dtp)s are in one inch?

One Inch (in) equals 72 Point (DTP) (pt). To convert inches to point (dtp)s, multiply the inch value by 72.

How do I convert Inch to Point (DTP)?

Multiply your inch value by 72 to get the result in Point (DTP): pt = in × 72. For example, 5 in = 360 pt.

What is the formula for converting in to pt?

The conversion formula is pt = in × 72. Use the calculator above for any value, and see the reference table below for common inputs from 0.001 to 1000.

Is there a quick mental estimate for in to pt?